問題一覧
1
A rectangular block of steel has dimensions of 5 meters x 10 meters x 15 meters and weighs 1000N. How should this block be placed to exert the least pressure on the surface?
on the 10 meters by 15 meters side
2
This organelles provide energy to the cell by breaking down sugar into atp
mitochondria
3
Pinakamahabang wavelength
radiowave
4
How many electrons can be accommodated in the 3rd energy level?
18
5
Group of cells that work together to perform an action
tissue
6
What is the mass number of an atom which contains 28 protons, 28 electrons and 34 neutrons?
62
7
The temperature at which the vapor pressure of the liquid is equal to the pressure of the surrounding atmosphere.
boiling point
8
The planets of the solar system have mythical references. They are based on what genre of mythology.
Roman Mythology
9
Shortest wavelength
gamma rays
10
The development of egg without fertilization is
Parthenogenesis
11
Theory of relativity
Albert Einstein
12
In what state is most matter in the universe
Plasma
13
Which of the following examples best illustrates application of Boyle’s Law?
A scuba divers stops at certain depths as he ascends to the ocean’s surface.
14
Richest type of tropical rainforest in the Philippines
Dipterocarp forest
15
Soil is considered an ecosystem. Which of the following supports the statement?
It consists of living organisms and abiotic components.
16
Which of the following is NOTa characteristic of a base?
Reacts with carbonates to produce carbon dioxide
17
This is a sound that has frequency below 20 Hz.
infrasonic sound
18
Which is true about HEAT TRANSFER?
Heat flows from an object with higher temperature to an object with lower temperature
19
These are small vertebrates that need water or a moist water or a moist environment to survive which include frogs, toad, salamander and newts
Amphibians
20
In a pair of scissors, the fulcrum is at the______
screw
21
If you lift one load up to two stories, how much work did you do compared to lifting one load up only one story?
Twice as much
22
What is the numerical value for the hardest mineral on the Mohs hardness scale?
10
23
Arrange the following steps in the most logical order of scientific investigation. I. Formulate the hypothesis II. Perform the experiment III. State the problem IV. Draw the generalization
III, II, IV, I
24
The angle of reflection is equal to the angle of refraction
The angle of incidence is equal to the angle of reflection
25
Why are door knobs placed at the edge of a door rather than in the center?
To increase the lever arm
26
what is the process of breaking down rocks into smaller pieces
weathering
27
At present, scientists report about the formation of holes in the ozone layer of the atmosphere. This dangerous trend is being blamed on which of the following wrong practices?
The excessive use of aerosols.
28
The scientific term for application of energy
Work
29
What causes high and low tides?
Moon’s gravitational pull
30
Father of Modern Chemistry
Antoine Lavoisier
31
Which of the following is not part of the structure of an atom?
Elements
32
The longer the wavelength, the less frequent is
The shorter the wavelength, the more frequent it is
33
Location of the main asteroid belt
Between Mars and Jupiter
34
The particles and rays that result from the disintegration of the atom of a radioactive material.
radiation
35
a medical researcher is conducting experiment using imaging techniques that involve the penetration of electromagnetic waves through the human body. Which type of electromagnetic waves is commonly used for such medical imaging?
X-rays
36
The zigzag road to Baguio represents which kind of simple machine?
Inclined plane
37
Budding, Fragmentation, fission and regeneration are examples of_____
Asexual Reproduction
38
Where ozone layer can be found?
stratosphere
39
These are elements which in their pure form cannot be broken down by chemical process into simpler substance EXCEPT ______
air
40
What term is given to the state of inactivity of an organism such as fragment passing winter or cold season
hibernation
41
Which of the following is true when a block of wood lays at rest on top of the table?
The sum of the forces acting on the block is zero
42
What kind of energy is possess by WATER FALLING FROM a DAM?
Kinetic
43
Which of the following is an example of chemical change
Burning of woods
44
Anti-violence against women and children
9262
45
The amount of radiation that comes from the sun that is received by a planet is called____
Insolation
46
chemical symbol for the element COPPER
cu